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Connectors and connectors commonly used in audio systems

2017-04-22handler934

In the audio system, the transmission and communication between the equipment and the equipment must be based on the tools. It plays a very important role in the whole sound system, now connecting cable and connector types are widely used in professional audio system, we put the wire and connector types common briefly introduced:

A variety of wire

1, professional audio line: now the audio line has two core, three core, four core, five core, this line due to the shielding effect is good, can be used to transmit audio signals of high quality; now the professional microphones usually use more than three core wire, the wire has strong anti-interference ability, can make long distance transmission. Of course, this wire can also send other signals, such as the DMX512 control signal to send a computer light.

2, the coaxial cable: generally used in the video, there are also some audio line, anti-interference ability is bad because of the wire, plus the design is mainly used to transmit audio signals, thus not suitable for long distance transmission of audio signal. 3, centralized cable: that is, a number of signal lines wrapped in the same protective tube, is generally connected to the internal use of the system in order to reduce the number of independent wire. It is also used in areas such as television vehicles, underground tunnels and other special areas. This line is generally a professional factory processing, quality is more secure.

4, optical fiber: many CD or MD and other audio and video recording equipment often used in the transmission of wire, it is the transmission of digital signals. With the popularization of digital technology, the application of optical fiber in the future will be more and more

5, MIDI line: usually for the five core line, the transmission of information about the MIDI, and now most of the use of the keyboard, the device and other devices.

6, there are some special wire, such as the computer system to the original song of core cable connection network now can also be used to transmit audio, computer automatic demand function.

Two, all kinds of connector:

1, XLR: XLR connector (Cannon), commonly known as the joint is composed of three contacts, respectively 1-- Ground grounding; 2-- hot end (+ 3--); cold end (-), of course also provided some equipment 3 is the hot end (+); 2 is the cold end (-), which will see the equipment. XLR connection is the use of a kind of plug-in connector the most extensive professional audio system, can be used for all types of audio signal transmission in a sound system, general balanced input and output terminals are used to connect the XLR connector. In a sense, is also a professional audio system using XLR connector is different from the characteristics of civil sound, its benefits are: A, adopt balanced transmission mode, anti interference ability for long distance transmission. B, with a spring locking device, the connection is reliable, not pulled off. C, connector provides signal flow, easy to prevent errors on the connection.

A male plug connector and female plug into socket, there were also male and female connector socket points. The utility model is characterized in that the contact point of the utility model is a pin. In accordance with the international common practice, the male plug or socket as the signal input end; the mother plug, socket as the signal output.

General RCA: 2, commonly known as lotus head (for RCA Chinese in certain types of joint appearance looks like lotus petals), the joint is composed of two contacts, respectively. The hot end (+); cold end grounding (-), the use of coaxial cable connection, of course, also can use multiple audio line, often used in general home audio equipment. Because its length is about 3.5 cm, so I usually call it: 3.5cm plug.

3, TRS: General called stereo connector, which is composed by three points respectively: the head end (+); ring end (-); grounding (Ground), in a small headset on the length of about 3.5 cm in use, but most still use in professional audio, its length: 6.35 cm, the high resistance professional mixer input and inserted into a socket mostly use this plug, other audio equipment is mostly used this port.

4, TS: commonly known as single tone (sound) connector, this joint is composed of two contacts, respectively, the head (+ level); grounding terminal (Ground). More than two kinds of joints, used in professional audio in the length of about 6.35 cm, so I usually call it: 6.35cm plug. Although the TS connector and the TRS connector two length, the appearance is also very similar, but the specific function can be different, TRS can use three wire joint stereo balance transmission signal; but not only by TS mono joints balance signals.

5, MIDI connector: use in the MIDI application of the joint, there are five pins, send information on the MIDI. 6, speaker connector, and now the general use of four core professional connector, as well as the use of TS mono connector or other methods. 7, all kinds of conversion joints: you can easily use this kind of joint in a variety of different joints between the conversion. 8, there are other special joints here do not introduce too much.

Three, the sound system in the production line

At present, the input and output signals of professional audio equipment can be divided into: Balance balance and Unbalance balance. Balance and non balance, balanced and unbalanced port is of course can be directly feeding signals; in demanding situations, between balanced and unbalanced port, must go through the converter to special connection. However, in the actual project, as long as the signal line is not too long, not too much interference, the balance port and unbalanced port is available


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